US3214936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry-air evaporative cooler
Assignee: DONALD W BURT
•
Filing: 1964-03-03
•
Granted: 1965-11-02
•
Expires: 1984-03-03
Abstract
No abstract record available.
Inventors
- 👤 Peri Leonard J Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:37
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/18; F28F13/185; F28D; F28D5/00; F28D5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN EVAPORATIVE COOLER WHEREIN AIR IS LOWERED IN TEMPERATURE WITHOUT ADDING MOISTURE THERETO, AND INCLUDING: (A) A HOUSING WITH A FLOOR THEREIN DIVIDING SAID HOUSING INTO TWO PLENUMS, THEREBEING AIR INLET OPENINGS IN ONE PLENUM AND AIR EXHAUST OPENINGS IN THE OTHER PLENUM; (B) AN AIR PUMP MEANS WITHIN THE INLET PLENUM AND WITH A BLOWER SCROLL DELIVERING AIR FROM SAID INLET PLENUM THROUGH SEPARATE OPENINGS IN SAID FLOOR AND INTO THE EXHAUST PLENUM; (C) AN AIR SEPARATING MEANS IN THE EXHAUST PLENUM AND ASSOCIATED WITH SAID SEPARATE OPENING TO SEPARATELY PASS INDEPENDENT COLUMNS OF AIR, ONE COLUMN BEING EXHAUSTED THROUGH SAID EXHAUST OPENINGS AND THE OTHER COLUMN BEING USEFULLY EXHAUSTED FROM SAID AIR SEPARATING MEANS; (D) AND LIQUID DISTRIBUTING MEANS DISCHARGING INTO THE COLUMN OF AIR EXHAUSTED FROM THE SAID AIR EXHAUST OPENINGS, WHEREBY THE USEFULLY EXHAUSTED COLUMN OF AIR IS ISOLATED FROM SAID LIQUID.
Claim 2
Dependent Claim
146 words
AN EVAPORATIVE COOLER WHEREIN AIR IS LOWERED IN TEMPERATURE WITHOUT ADDING MOISTURE THERETO, AND INCLUDING: (A) A HOUSING WITH A FLOOR THEREIN DIVIDING SAID HOUSING INTO TWO PLENUMS, THEREBEING AIR INLET OPENINGS IN ONE PLENUM AND AIR EXHAUST OPENINGS IN THE OTHER PLENUM; (B) AN AIR PUMP MEANS WITHIN THE INLET PLENUM AND WITH A BLOWER SCROLL DELIVERING AIR FROM SAID INLET PLENUM THROUGH SEPARATE OPENINGS IN SAID FLOOR AND INTO THE EXHAUST PLENUM; (C) AN AIR SEPARATING MEANS IN THE EXHAUST PLENUM AND ASSOCIATED WITH SAID SEPARATE OPENING TO SEPARATELY PASS INDEPENDENT COLUMNS OF AIR, ONE COLUMN BEING EXHAUSTED THROUGH SAID EXHAUST OPENINGS AND THE OTHER COLUMN BEING USEFULLY EXHAUSTED FROM SAID AIR SEPARATING MEANS; (D) AND LIQUID DISTRIBUTING MEANS DISCHARGING INTO THE COLUMN OF AIR EXHAUSTED FROM THE SAID AIR EXHAUST OPENINGS, WHEREBY THE USEFULLY EXHAUSTED COLUMN OF AIR IS ISOLATED FROM SAID LIQUID.
References Cited (Backward Citations)
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US2174060A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |